Authors
Karolina Kraczkowska
University of Life Sciences, Poznań, Poznań, Poland
Piotr Stachowski
University of Life Sciences, Poznań, Poznań, Poland
© 2018 Karolina Kraczkowska, Piotr Stachowski, published by Slovak University of Agriculture in Nitra
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.